Soil Hygrometer Humidity Detection Moisture Sensor


7 in stock

Product Description

Features & Specifications

When the soil is dry, the module outputs is in high level. The sensor is suitable for automatic watering system.

Operating voltage: 3.3V~5V.

Adjustable sensitivity (shown in blue digital potentiometer adjustment)

Dual output mode,analog output more accurate.

A fixed bolt hole for easy installation.

With power indicator (red) and digital switching output indicator (green).

The used chip is LM393.

Panel PCB Dimension: 3cm x 1.5cm

Soil Probe Dimension: 6cm x 2cm

Cable Length: 21cm

Board pins:

VCC: 3.3V-5V


DO: digital output interface(0 and 1)

AO: analog output interface

Instructions for Use :

1. Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil;

2. Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low;

3. The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture;

4. The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment;

5. Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture;